Physics and Environment Questions

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The discussion focuses on calculating the emission temperature of Venus using its orbital radius and solar flux, considering its high albedo of 0.77. The observed mean surface temperature of Venus is approximately 750 K, prompting inquiries about the number of atmospheric layers needed to reach this temperature. Comparatively, Earth's mean surface temperature is 288 K, raising questions about the atmospheric composition required for similar warming. Participants are encouraged to share relevant equations and their attempts at solving these problems. The thread emphasizes the relationship between planetary atmospheres and surface temperatures in the context of physics and environmental science.
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(a) Determine the emission temperature fro the planet Venus. You may assume that the following: the mean radius of Venus' orbit is 0.72´
that of Earth's orbit, the solar flux S0 decreases as the square of the distance from the sun and has a value of 1367Wm-2 for Earth's orbit;
Venus's planetary albedo is 0.77.
(b) The observed mean surface temperature of the planet Venus is about 750 K. How many layers of the N-layered atmosphere (see previous
problem) would be required to achieve this type of warming?
(c) Earth's mean surface temperature is 288 K. How many layers must our atmosphere be composed of?
 
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What equations are relevant to these problems? Also, what have you tried so far to solve them?
 

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